Home / 14,121.82-21,167.95-4,758.60

Finding the Fourth Proportional to 14,121.82, 21,167.95 and 4,758.60

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Solution

The fourth proportional to 14,121.82, 21,167.95 and 4,758.60 is: 7,132.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,121.82 : 21,167.95 = 4,758.60 : x
  2. Step 2: Convert to fraction form
    14,121.82/21,167.95 = 4,758.60/x
  3. Step 3: Cross multiply
    14,121.82x = 21,167.95 × 4,758.60
  4. Step 4: Simplify right side
    14,121.82x = 100,729,806.87
  5. Step 5: Solve for x
    x = 100,729,806.87/14,121.82
  6. Step 6: Final answer
    x = 7,132.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.